From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22562 invoked by alias); 23 Apr 2014 18:05:20 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 22526 invoked by uid 55); 23 Apr 2014 18:05:17 -0000 From: "law at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/60902] [4.9/4.10 Regression] ffmpeg built with gcc 4.9 RC produces incorrect flac playback code Date: Wed, 23 Apr 2014 18:05:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: law at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: law at redhat dot com X-Bugzilla-Target-Milestone: 4.9.1 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-04/txt/msg01760.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60902 --- Comment #31 from Jeffrey A. Law --- Author: law Date: Wed Apr 23 18:04:46 2014 New Revision: 209716 URL: http://gcc.gnu.org/viewcvs?rev=209716&root=gcc&view=rev Log: PR tree-optimization/60902 * tree-ssa-threadedge.c (record_temporary_equivalences_from_stmts_at_dest): Make sure to invalidate outputs from statements that do not produce useful outputs for threading. PR tree-optimization/60902 * gcc.target/i386/pr60902.c: New test. Added: trunk/gcc/testsuite/gcc.target/i386/pr60902.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-threadedge.c